1. Amazon Mechanical Turk http://www.mturk.com Amazon Mechanical Turk http://www.mturk.com
2. AI Gets a Brain
3. Brendan O'Connor "Search Engine Relevance: An Empirical Test" http://blog.doloreslabs.com/2008/04/search-engine-relevance-an-empirical-test/#more-35 accessed April 13 2008. Brendan O'Connor "Search Engine Relevance: An Empirical Test" http://blog.doloreslabs.com/2008/04/search-engine-relevance-an-empirical-test/#more-35 accessed April 13 2008.
4. Jeff Howe. "The Rise of Crowdsourcing". Wired June 2006. http://www.wired.com/wired/archive/14.06/crowds.html Jeff Howe. "The Rise of Crowdsourcing". Wired June 2006. http://www.wired.com/wired/archive/14.06/crowds.html